20439 (number)

20439 is an odd 5-digits composite number following 20438 and preceding 20440. In scientific notation, it is written as 2.0439 × 10^4. The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors. There are 13608 positive integers (up to 20439) that are relatively prime to 20439.

Interesting facts

Basic properties

Name

Name twenty thousand four hundred thirty-nine

Notation

Scientific notation 2.0439 × 10^4
Engineering notation 2.0439 × 10^3

Prime Factorization of 20439

Prime Factorization 27 × 757

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20439
Product of the distinct prime numbers

The prime factorization of 20439 is 27 × 757. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 75, 60, 173, 688, 4593, 6284, 36629, 19708, 196840, 847246, 277340, 2890388, 18997874, 29344559, 910447724, 569760468, 7420900797, 6679585362

Basic calculations (n = 20439)

Multiplication

n×y
n×2 40878
n×3 61317
n×4 81756
n×5 102195

Division

n÷y
n÷2 10219.5
n÷3 6813
n÷3 5109.75
n÷5 4087.8

Exponentiation

ny
n2 417752721
n3 8538447864519
n4 174517335902903841
n5 3.5669598285195E+21

Nth Root

y√n
2√n 142.96503068933
3√n 27.341345393988
4√n 11.95679851337
5√n 7.2793387270636

Divisors of 20439

1, 27, 757, 20439

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20438
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20439 can be divided by 4 positive divisors. The sum of these divisors (counting 20439) is 1, the average is 0.25.

Base conversion 20439

Base System Value
2 Binary 100111111010111
3 Ternary 1001001000
4 Quaternary 10333113
5 Quinary 1123224
6 Senary 234343
8 Octal 47727
10 Decimal 20439
12 Duodecimal b9b3
16 Hexadecimal 4fd7
20 Vigesimal 2b1j
36 Base36 frr

Cryptographic Hash Functions

md5 deceadecf04167f28d3e92a743dca071
sha1 09d81776d9961ee3395ec39a72697599410d3879
sha256 c0e87ab627bc6883db02c0fa61cafd83dec52c4f705c2130f3f1da9403eca09a
sha512 bd3f9c2e6f8ff2c53f387ddd7b8c6f940145a3aaa6dbadaac6ab5c54ddadf7c90861bc67e18a79265ee221e356b6503879839686a02fb4dd74c9ef41574be8fc
ripemd-160 8aeaee49c652f56366d75cfb00a97c2e1adfaed8

20439 as geometric shapes

Circle

Radius = n
Diameter 40878
Circumference 128422.02449344
Area 1312408879.3107

Sphere

Radius = n
Volume 35765766778976
Surface area 5249635517.243
Circumference 128422.02449344

Square

Length = n
Perimeter 81756
Area 417752721
Diagonal 28905.111001344

Cube

Length = n
Surface area 2506516326
Volume 8538447864519
Space diagonal 35401.3864559

Equilateral Triangle

Length = n
Perimeter 61317
Area 180892234.44304
Altitude 17700.69322795

Triangular Pyramid

Length = n
Surface area 180892234.44304
Volume 1006265730968.2
Height 9635.0370004479